Ring and gusset coupling



FIG. 1 is an isometric view of our design for a ring and gusset coupling;

FIG. 2 is a left side view thereof, the right side view being a mirror image thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

The broken lines depict portions of the ring and gusset coupling that form no part of the claimed design. 

CLAIM We claim the ornamental design for a ring and gusset coupling, as shown and described. 